TMS37F128 Datasheet, PDF (1/10 Pages) Texas Instruments – CONTROLLER REMOTE ACCESS IDENTIFICATION DEVICE (CRAID) WITH INTEGRATED MICROCONTROLLER, 3D WAKEUP RECEIVER, AND IMMOBILIZER INTERFACE

TMS37F128
www.ti.com
SCBS878 – APRIL 2012
CONTROLLER REMOTE ACCESS IDENTIFICATION DEVICE (CRAID) WITH INTEGRATED
MICROCONTROLLER, 3D WAKEUP RECEIVER, AND IMMOBILIZER INTERFACE
Check for Samples: TMS37F128
FEATURES
1
– Up to 8-kbit/s LF Uplink Data Rate
•2 Wide Supply Voltage Range: 1.8 V to 3.6 V
– 5-/3-Byte Challenge/Response Algorithm
• Ultralow Power Consumption
– Fast Authentication Within 42 ms
– CPU Active Mode: 200 μA/MHz at 2.2 V
– Fast Mutual Authentication Within 65 ms
– Standby Mode (LPM3): 0.7 μA
– 133-Byte EEPROM
– Off Mode (LPM4): 0.1 μA
– Power-Down Mode: 60 nA
• Microcontroller System and Peripherals
– 16-Bit RISC Architecture, 125-ns Instruction
Cycle Time
– 91-Byte Free Available EEPROM User
Memory
– 32-Bit Unique Serial Number
– High EEPROM Security and Flexibility
– Write-Only Authentication Keys
– Wake-Up From Standby Mode in <6 μs
– Basic Clock Module Configurations
– Single External Resistor
– 32-kHz Crystal
– High-Frequency Crystal
– Resonator
– External Clock Source
– 16-Bit Timer_A With Three
Capture/Compare Registers
– 10-Bit 200-ksps Analog-to-Digital (A/D)
Converter With Internal Reference, Sample-
and-Hold, and Autoscan
– Pages Are Irreversibly Lockable and
Protectable
– Protected Pages Programmable Only
Through Mutual Authentication
– Battery Check and Charge Functions
– Each User Page is Lockable
– Resonant Frequency: 134.2 kHz
– Integrated Resonant Frequency Trimming
• Low-Frequency 3D Wakeup Receiver
– Highest Communication Range of More
Than Three Meters
– High Input Sensitivity: 4.2 mV_pp (Typ)
– 8KB + 256B Flash Memory
– High Q System
– 256B RAM
– Integrated Resonant Circuit Trimming
– 133-Byte EEPROM
Compensates for Component Offsets
– Serial Onboard Programming, No External
Programming Voltage Needed
– Received Signal Strength Indicator (RSSI)
Output for Each Channel
– Programmable Code Protection by Security
Fuse
– Resonant Circuit Usable as Clock
Reference for Microcontroller (134.2 kHz)
– 80-Bit DST80 Security Authentication
– Frequency Range: 120 kHz to 140 kHz
Coprocessor
– Ultra-Low Standby Current: 3.9 μA (Typ)
– 17 I/O Ports
• Low-Frequency (LF) Immobilizer Interface
– Integrated Batteryless Immobilizer Interface
– Half Duplex (HDX) Immobilizer
Communication Achieves up to 4-in (10-cm)
Read Range
With All Three Channels Active for Wake
Pattern Detection
– Interface to up to Three External Antennas
– Two Different Programmable Wake Patterns
– Selectable Wake Pattern Length:
0, 4, 8 or 16 Bits
– Special Selective Addressing Mode Allows
– Two Separate Adjustable Wake-Up Levels
Reliable Learn-In Sequence
– Digital Channel Sensitivity Adjustment for
– 80-Bit Authentication Key Length
Each Antenna
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
MSP430 is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated